See Also: Beta-2 agonist(health)
Beta agonist(health)
Beta-agonist(health)
beta-1,3-galactosyl-O-glycosyl-glycoprotein beta-1,6-acetylglucosaminyl transferase(medicine)
beta-1,3-galactosyl-0-glycosyl-glycoprotein beta-1,3-N-acetylglucosaminyltransferase(medicine)
UDP-GalNAc-beta-galactose beta 1,4-N-acetylgalactosaminyltransferase(medicine)
beta-1,4-mannosyl-glycoprotein beta-1,4-N-acetylglucosaminyltransferase(medicine)
agonist(dictionary)
Agonist(health)
LH and RH agonist(medicine)

Beta-agonist (health)


"A bronchodilator medicine that opens the airways by relaxing the muscles around the airways that may tighten during an asthma attack or in COPD (chronic obstructive pulmonary disease). Beta-agonists can be administered by inhalers or orally. They are called ""agonists"" because they activate the beta-2 receptor on the muscles surrounding the airways. Activation of beta-2 receptors relaxes the muscles surrounding the airways and opens the airways. Dilating airways helps to relieve the symptoms of dyspnea (shortness of breath). Beta-2 agonists have been shown to relieve dyspnea in many asthma and COPD patients. The action of beta-2 agonists starts within minutes after inhalation and lasts for about 4 hours. Because of their quick onset of action, beta-2 agonists are especially helpful for patients who are acutely short of breath but, because of their short duration of action, several doses of beta-agonists are often necessary each day. The side effects of beta-2 agonists include anxiety, tremor, palpitations or fast heart rate, and low blood potassium. "